343801989 has 24 divisors (see below), whose sum is σ = 532764960. Its totient is φ = 221293296.

The previous prime is 343801987. The next prime is 343801993. The reversal of 343801989 is 989108343.

It is not a de Polignac number, because 343801989 - 2¹ = 343801987 is a prime.

It is a super-2 number, since 2×343801989² = 236399615280712242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343801981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17347 + ... + 31440.

It is an arithmetic number, because the mean of its divisors is an integer number (22198540).

Almost surely, 2^343801989 is an apocalyptic number.

It is an amenable number.

343801989 is a deficient number, since it is larger than the sum of its proper divisors (188962971).

343801989 is an equidigital number, since it uses as much as digits as its factorization.

343801989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48831 (or 48819 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 343801989 is about 18541.8982037978. The cubic root of 343801989 is about 700.5451460891.

The spelling of 343801989 in words is "three hundred forty-three million, eight hundred one thousand, nine hundred eighty-nine".